An object with a mass of 5 kg lies is on a horizontal surface with a...

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science physics

Answer 1

Answer #1

Solution:

Normal force always acting perpendicular to the displacement.

Now we know that work done = force x displacement x cos(angle between force and displacement)

so work done by only normal force = force x displacement x cos 90^o = 0 ( as cos90^o= 0 )

so work done by only normal force = 0 J

Answer : 0 J

Thank You.

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Answer 2

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